Reference Terms
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Altitude
Altitude is the elevation of an object from a known level or datum.
Note: The above text is excerpted from the Wikipedia article "Altitude", which has been released under the GNU Free Documentation License.
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Matter & Energy News
April 1, 2025
Mar. 27, 2025 — Most haptic devices only deliver feedback as simple vibrations. New device applies dynamic forces in any direction to simulate a more realistic sense of touch. Small, lightweight device can enhance virtual reality, help individuals with visual ...
Mar. 25, 2025 — This a robot can walk, without electronics, and only with the addition of a cartridge of compressed gas, right off the 3D-printer. It can also be printed in one go, from one ...
Mar. 19, 2025 — A leaping robot could have application in search and rescue, construction, even forest monitoring. But how do you design a robot to stick a landing on a branch or pipe? Biologists worked with robot designers to discover how squirrels do it, and used ...
Mar. 12, 2025 — Scientists have developed an approach that combines rehabilitation robotics with spinal cord stimulation to restore movement in people with spinal cord injuries. The technology enhances rehabilitation and enables activities like cycling and walking ...
Latest Headlines
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Apr. 1, 2025 — Researchers have created a bilayer metasurface made of two stacked layers of titanium dioxide nanostructures, opening new possibilities for structuring ...
Apr. 1, 2025 — A team of chemists found a way to see into battery interfaces -- tight, tricky spots buried deep inside the cell have long frustrated battery ...
Apr. 1, 2025 — While the threat that microplastics pose to human and ecological health has been richly documented and is well known, nanoplastics, which are smaller ...
Apr. 1, 2025 — Self-healing coatings are advanced materials that can repair damage, such as scratches and cracks on their own. Researchers have developed an efficient method for preparing self-healing films ...
Apr. 1, 2025 — Researchers present gum tragacanth as a plant-based alternative to gelatin for creating edible films. The team developed films containing different concentrations of gelatin and gum tragacanth and ...
Apr. 1, 2025 — Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual ...
Mar. 27, 2025 — A team of researchers has developed a groundbreaking high-temperature copper alloy with exceptional thermal stability and mechanical strength. The ...
Mar. 31, 2025 — AI mental health apps may offer a cheap and accessible way to fill the gaps in the overstretched U.S. mental health care system, but ethics experts warn that we need to be thoughtful about how we use ...
Mar. 31, 2025 — Researchers have developed an innovative solution to a pressing environmental challenge: removing and destroying per- and polyfluoroalkyl substances (PFAS), commonly called 'forever chemicals.' A new ...
Mar. 31, 2025 — Bioelectronic devices, neural interfaces, biosensors and AI hardware are now easier to make thanks to a streamlined method for fabricating a key ...